Examlex
How are the concepts of puberty and adolescence different?
O Horizon
The topmost layer of soil, primarily composed of organic matter such as decomposed leaves, twigs, and other plant material.
Organic Litter
Decomposed or decomposing organic matter found on the surface of the soil, originating from dead plants and animals.
Casparian Strip
A waterproof barrier located in the cell walls of the endodermis of plant roots, controlling the flow of water and nutrients from the soil into the vascular system of the plant.
Endoderm
Innermost tissue layer of an animal embryo.
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